00547naa#a2200157#i#450# EN\\bibl\99279 20260121204036.3 2587-9820 20250630b2025####ek#y0engy0150####ca RU MATHEMATICAL AND STATISTICAL APPROACH AS A WAY OF OBJECTIVIZING TRACEOLOGICAL RESEARCH Journal article Irkutsk East Siberian institute of the Ministry of Internal Affairs of the Russian Federation 2025 13 с. Journal article local Poryvaeva Polina Sergeevna kvsz.ru